Telephone extension-arm appliance.



PATENTBD JULY 2, 1907] is. w. SWEET. TELEPHONE EXTENSION ARM APPLIANCE.-

LPPLIOATIOK I'ILBD BBPT. 22. 1906.

[ZZZ/52722727., Euzmn M52255:-

UNITED STATES PATENT OFFICE.

BURTON W. SWEET, OF CLEVELAND, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TOCENTURY TELEPHONE CONSTRUCTION COMPANY, OF BUFFALO, NEW YORK, ACORPORATION OF NEW YORK.

TELEPHONE EXTENSION-ARIVIQAPPLIANCE.

Specification of Letters Patent.

Patented July 2, 1907.

Application filed September 22,1906. Serial No- 335.801.

To all whom it may concern:

Be it known that I, BURTON W. SWEET, a citizen of the United States ofAmerica, and a resident of Cleveland, in the county of Ouyahoga andState of Ohio, have invented certain new and useful Improvements inTelephone Extension-Arm Appliances, of which the following is aspecification, reference being had to the accompanying drawings, forminga part thereof.

My invention relates to improvements in extensionarm telephones, andmore particularly to the supporting means for the telephone at the endof such arm, present in a removable bracket-member for the telephoneinstrument.

In the many types of extension supports for telephones known to theprior art, the telephone is either rigidly fixed at the end of the arm,and may not be removed by the party for greater convenience in using thesame; or else the telephone instrument is removably supported by meansof a pivot, and, in consequence, is frequently displaced by accident,thereby subjecting the instrument to considerable liability of breakageor injury.

It has been my object to combine in my improved construction, theadvantages of both of these types of telephone support, which I providein a removable self-locking bracket-member and socket, respectivelydisposed upon the telephone instrument and at the end of theextension-arm.

My improvements will be more readily appreciated, together with thefurther features and advantages thereof, by making reference to theaccompanying sheet of drawings, illustrating embodiments of myinvention, wherein;

Figure I, is a side view of a portion of the pivoted extension-arm, andits supported telephone. Fig. II, is a top view of the end of said armand the telephone. Figs. III and IV, are details showing respectivelythe telephone bracket and extension-arm socket. Fig. V, is a detailpartially in section, showing the manner of releasing the telephonebracket from its receivingsocket; and, Fig. VI, illustrates the use of aplurality of such sockets, whereby the telephone may be angularlypositioned with respect to the supporting extensionarm.

Throughout each of the sev'eral figures of the drawings, I have employedthe same character of reference to indicate similar parts.

Referring first to Fig. I, it will be understood that a a are twopivoted members of an extension-arm,

the former of which may either be pivoted or rigidly sheet metalbracket-member d, comprising the two ears or lugs d screwed to eitherside of the telephone casing, and the spacing members a? rearwardlyembraced between said ears. A slot (2 is provided, which is adapted toengage the pin b of the socket, while an exterior notch or recess (1thereon similarly accommodates the pin b.

In Figs. I and II, the instrument is shown as supported from thereceiving-socket, in position to be removed by the user after the mannerindicated in Fig. V, which is accomplished merely by tilting thetelephone instrument backward from its normal position of support, inorder to disengage the recess d from its associated pin b whereupon theinstrument is free to be removedfrom the extension-arm for the purposesof use, and may be readily replaced upon the socketed extension-arm whenthe conversation is completed.

Reference to the normal relation of the bracket and socket parts asindicated in Fig. I, will show that the weight of the telephone tends tolock it in place upon the extension-arm by reason of its over-weightedpositioning, whereby the recess 03 engages the pin b and securely themounts the instrument upon the extension-arm.

Under some circumstances, it is more convenient to use the extension-armtelephone without removing it from its socket, and accordingly, I mayemploy a plurality of such sockets angularly mounted at the end of saidarm, whereby the telephone may be best disposed for the convenience ofthe user under these circumstances. One of these constructions isindicated in Fig. VI, which improvement combines all the advantages ofthe pivoted telephone instrument, and one securely held upon theextension-arm against displacement, since the telephone instrument maybe disposed at the desired angle upon the extensionarm, and at the sametime is not liable to be accidentally knocked or jarred from itssupport.

Having now described embodiments of my improvements, I claim as new, anddesire to secure by Letters Patent, the following, together with thereversal of the socket and bracket members or their equivalents, as setforth with respect to the telephone and its supporting-arm 1. Thecombination with a telephone instrument and an extension-arm therefor,of a removable mounting appliance for the telephone, comprisingseparable co-acting bracket and socket members adapted to be securedrigidly to said telephone and to the extension-arm, and means associatedtherewith for normally locking said members together, substantially asset forth.

2. The combination with an extension-arm, of a telephone mountedthereon, and interposed bracket and socket members respectivelyassociated with said parts; said members comprising slotted or recessedengaging parts in association with retaining pins or detents, wherebythe telephone and extension-arm are normally secured together againstaccidental displacement of the former, substantially as set forth.

3. The combination with an extension-arm, of a sheetmetal socket securedat the end thereof, transverse pins or detents provided therein, atelephone instrument, and a slotted or recessed bracket secured thereto;the latter be ing adapted to engage the pins or detents within thesocket and normally mount the telephone instrument against accidentaldisplacement from the extension-arm, substantially as set forth.

4. The combination with a telephone instrument, of an extension-armtherefor, and mounting-members rigidly secured to each, comprising :1sheet metal socket containing two displaced detents and a sheet metalbracket slotted and recessed respectively to engage said (letents,whereby the telephone instrument is normally secured :1 dentaldisplacement from its supporting extension-arm, substantially as setforth.

Signed at Cleveland, Ohio, this 20th day oi Sepl. A. ll. 20

1906, in the presence of two subscribing witnesses.

' Buu'roN w. wmrr.

Witnesses GRACE ARMSTRONG, ALBERT LYNN LAWRENCE.

